我想更改用户的角色。更改用户在数据库中的角色。一切都基于Spring Security。

我的代码:

UserDetails user = userDetailsManager.loadUserByUsername(userData.getUser().getUsername());

user.getAuthorities().add(new SimpleGrantedAuthority(role));

userDetailsManager.updateUser(user);


错误:

Error:(99, 30) java: method add in interface java.util.Collection<E> cannot be applied to
given types;
  required: capture#1 of ? extends org.springframework.security.core.GrantedAuthority
  found: org.springframework.security.core.authority.SimpleGrantedAuthority
  reason: actual argument
org.springframework.security.core.authority.SimpleGrantedAuthority cannot be converted to
capture#1 of ? extends org.springframework.security.core.GrantedAuthority by method
invocation conversion


我不知道为什么会这样。否则如何更改用户的角色?

最佳答案

您可以通过从现有用户创建一个新的UserDetails对象,然后按如下所示调用UserDetailsManager.updateUser()方法来更新给定用户的角色:

    UserDetails oldDetails = userDetailsManager.loadUserByUsername(user);
    UserDetails newDetails = new User(user, oldDetails.getPassword(),  newRole);
    userDetailsManager.updateUser(newDetails);

09-27 07:10